Documentation is still, how shall we say, .. somewhat lacking, but some progress has been made and there is a working example application for everything.

Assembly Summer 2012 Proton Talk

Proton Pro and contributor Aki Koskinen will be giving a talk about Proton SDK August 2nd at 21:00 at Assembly, so check it out if you’d like the low down on what differentiates it from the millions of other frameworks out there and if it would be a good fit your project.